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Mitch Pileggi
ACTOR

Mitch Pileggi

Known for Grey's Anatomy · Supernatural · American Horror Story

Mitchell Craig "Mitch" Pileggi (born April 5, 1952) is an American actor. Pileggi is known for playing FBI assistant director Walter Skinner on the long-running popular series The X-Files. He also had a recurring role on Stargate Atlantis as Col. Steven Caldwell. He appeared in the 2008 film, Flash of Genius.

Snapshot 2026-10-15

Born
Apr 5, 1952
Birthplace
Portland, Oregon, USA
Known For
Acting

Biography

Mitchell Craig "Mitch" Pileggi (born April 5, 1952) is an American actor. Pileggi is known for playing FBI assistant director Walter Skinner on the long-running popular series The X-Files. He also had a recurring role on Stargate Atlantis as Col. Steven Caldwell. He appeared in the 2008 film, Flash of Genius.

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Known For

TVGrey's Anatomy
Grey's AnatomyLawrence Jennings · 2005
★ 8.2
TVSupernatural
SupernaturalSamuel Campbell · 2005
★ 8.3
TVAmerican Horror Story
American Horror StoryArt · 2011
★ 8.1
MOVIEBasic Instinct
Basic InstinctInternal Affairs Investigator · 1992
★ 7.0
TVSupergirl
SupergirlRama Khan · 2015
★ 7.3
TVLaw & Order: Special Victims Unit
Law & Order: Special Victims UnitJack Hammond · 1999
★ 8.0
TVThe X-Files
The X-FilesWalter Skinner · 1993
★ 8.4
TVThe Rookie
The RookieRex · 2018
★ 8.5

Filmography

Movies

MongrelWoody
1982
On the LineStephens
1984
Dalton: Code of Vengeance IIVerbeck
1986
3 On a MatchBull Tully
1987
Death Wish 4: The CrackdownLab Foreman
1987
Three O'Clock HighDuke Herman
1987
U.S. Marshals: Waco & RhinehartGate AP
1987
Brothers in ArmsCaleb
1988
Return of the Living Dead Part IISarge
1988
ShockerHorace Pinker
1989
Night VisionsCaptain Keller
1990
Guilty as ChargedDominique
1991
Knight Rider 2000Thomas J. Watts
1991
Basic InstinctInternal Affairs Investigator
1992
Trouble Shooters: Trapped Beneath the EarthThompson
1993
Dangerous TouchVince
1995
Secrets of the X-FilesSelf
1995
Vampire in BrooklynTony the Hitman
1995
More Secrets of the X-FilesSelf / Narrator (voice)
1996
Raven HawkCarl Rikker
1996
Breaking the Magician's Code: Magic's Biggest Secrets Finally RevealedHost
1997
BT
Breaking the Magician's Code: Magic's Biggest Secrets Finally Revealed 2Host
1998
BT
Breaking the Magician's Code: Magic's Biggest Secrets Finally Revealed 3Host
1998
BT
Breaking the Magician's Code: Magic's Biggest Secrets Finally Revealed 4 - Unmasking the Magician: The Final RevealHost
1998
Inside The X-FilesSelf
1998
Legion of Fire: Killer AntsPolice Chief Jeff Croy
1998
The Making of 'The X Files: Fight the Future'Narrator (Voice)
1998
The X-FilesWalter Skinner
1998
Gun ShyDexter Helvenshaw
2000
Conspiracy Theory: Did We Land on the Moon?Narrator
2001
First to DieWarren Jacobi
2003
Man in the ChairFloyd
2007
Flash of GeniusMacklin Tyler
2008
RecountBill Daley
2008
The X-Files: I Want to BelieveWalter Skinner
2008
Stargate Atlantis: Fans' ChoiceSteven Caldwell
2009
Xtra CreditJohn Weller
2009
W
WoodshopMiller
2010
Mega CycloneGunter MacGregor
2011
The Girl in the PhotographsSheriff Porter
2015
Transformers: The Last KnightTRF Group Leader
2017
IM
Implanted Memories: 25 Years of the X-FilesSelf
2018
PolaroidSheriff Thomas Pembroke
2019
American Traitor: The Trial of Axis SallyJohn Kelly
2021
Desert ShadowsProfessor Charles M. Ridley
2022

Television

DallasMorrisey · 2 eps
1978
Falcon CrestSaunder's Henchman · 2 eps
1981
Falcon CrestEddie · 1 eps
1981
The A-TeamPaul Winkle · 1 eps
1983
Alien NationJohn Paul Sartre · 1 eps
1989
Get a LifeMax · 1 eps
1990
RocWhite Officer · 1 eps
1991
The X-FilesWalter Skinner · 91 eps
1993
The X-FilesWalter Skinner / SS Sturmbannfuehrer · 1 eps
1993
ERTerry Waters · 1 eps
1994
That '70s ShowBull · 1 eps
1998
Batman BeyondDr. Stanton (voice) · 1 eps
1999
Law & Order: Special Victims UnitJack Hammond · 2 eps
1999
The West WingSenator Dresden · 1 eps
1999
CSI: Crime Scene InvestigationHappy Harry Desmond · 1 eps
2000
The Lone GunmenWalter Skinner · 1 eps
2001
Birds of PreyAl Hawke · 1 eps
2002
NCISWynn Crawford · 2 eps
2003
Nip/TuckDr. Russell Marcus · 1 eps
2003
TarzanRichard Clayton · 8 eps
2003
Boston LegalU.S. Attorney Mark Freestone · 1 eps
2004
Stargate AtlantisSteven Caldwell · 22 eps
2004
The BatmanCommissioner Gordon (voice) · 14 eps
2004
The BatmanGordon (voice) · 1 eps
2004
The MountainColin Dowling · 13 eps
2004
EyesRobert Sutherland · 1 eps
2005
Grey's AnatomyLawrence Jennings · 8 eps
2005
MediumDan Burroughs · 4 eps
2005
SupernaturalSamuel Campbell · 7 eps
2005
SupernaturalSamuel Campbell / Shapeshifter · 1 eps
2005
Brothers and SistersBrowne Carter · 3 eps
2006
Day BreakDetective Spivak · 13 eps
2006
ReaperDetective Dan Stafford · 1 eps
2007
Breaking the Magician's Code: Magic's Biggest Secrets Finally RevealedNarrator (voice) · 13 eps
2008
In Plain SightAl Dennison · 1 eps
2008
LeverageColin Saunders · 1 eps
2008
Sons of AnarchyErnest Darby · 13 eps
2008
CastleHans Brauer · 1 eps
2009
Human TargetLeonard Kreese · 1 eps
2010
Against the WallRandall · 1 eps
2011
American Horror StoryArt · 2 eps
2011
DallasHarris Ryland · 40 eps
2012
The FinderEddie Ross · 1 eps
2012
SupergirlRama Khan · 4 eps
2015
The RookieRex · 1 eps
2018
HelstromPapa · 1 eps
2020
WalkerBonham Walker · 69 eps
2021

Photos

Mitch Pileggi photo
Mitch Pileggi photo
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